Geforce GTX 770 vs Radeon Pro Duo

Intro

Compare those specifications to the Radeon Pro Duo, which has a core clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also uses a 4096-bit memory bus, and makes use of a 28 nm design. It is comprised of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon Pro Duo		27167 points
Geforce GTX 770		7854 points
	Difference: 19313 (246%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
Radeon Pro Duo		350 Watts
	Difference: 120 Watts (52%)

Memory Bandwidth

Performance-wise, the Radeon Pro Duo should theoretically be much better than the Geforce GTX 770 in general. (explain)

Radeon Pro Duo		1024000 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 799616 (356%)

Texel Rate

The Radeon Pro Duo should be quite a bit (approximately 282%) more effective at anisotropic filtering than the Geforce GTX 770. (explain)

Radeon Pro Duo		512000 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 378112 (282%)

Pixel Rate

The Radeon Pro Duo will be much (approximately 282%) more effective at FSAA than the Geforce GTX 770, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon Pro Duo		128000 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 94528 (282%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.